But instead of stopping, the 58-year-old drove away from the fatally injured motorcyclist, picked up her husband at the terminal, and went home.
Yesterday, Lim wept silently in the dock as a judge sentenced her to five months' jail and banned her from driving for three years.
District Judge Jill Tan said that Lim deserved a jail sentence because she did not stop to help the motorcyclist, Mr Ghazali Mohamed Noor, 47.
The package officer with the Singapore Airport Terminal Services (Sats) was on his way to Changi Airport on Christmas Day morning in 2006 when he hit a car making an illegal U-turn.
Mr Ghazali was flung off, landing one lane away.
While he was trying to get up, Lim ran over him. She did not brake and went on to pick up her husband from Terminal 1, before heading home.
Mr Ghazali suffered multiple injuries and died on the spot.
Lim reported to the Traffic Police only eight days late, after being issued a letter ordering her to come in.
Pleading for leniency, defence lawyer Luke Lee urged the court not to jail Lim, saying it was not clear which car inflicted the fatal blow.
The driver who touched off the accident with an illegal U-turn, 64-year-old contractor Tew Hock Sew, also left the scene, only to return five minutes later after dropping off a passenger at the airport.
In May this year, he was sentenced to five months' jail and banned from driving for three years for failing to help.
Upon appealing two months later, his sentence was reduced to three months in jail.
Mr Lee said Lim, who is out on a bail of $20,000, plans to appeal against the sentence.
